Description

Foxboro FBM218 HART Communication Redundant Output Interface module

• Redundant Design: The module pair provides FBM-level redundancy, usually two modules are used in combination, one as the Master and the other as the Tracker. When one of the modules fails, its output will be driven to 0mA, while the corresponding channel in the normal module will automatically continue to provide appropriate current to the output current loop, ensuring the normal operation of the system and improving the reliability and availability of the system.
• HART Protocol Support: Compliant with HART protocol standards, each output channel is equipped with an FSK modem for bidirectional digital communication with HART field devices. It supports message pass-through functions for HART universal commands, common commands, and specific device commands, but does not support burst communication mode.
• Channel Configuration: It has 8 isolated output channels, each of which can work independently. It can provide standard 4-20mA analog output signals, and can also superimpose digital HART Frequency Shift Keying (FSK) signals on the 4-20mA analog output signals, supporting any combination of standard 4-20mA devices and HART devices.
• Electrical Isolation: All output channels are electrically isolated from each other, from ground, and from module logic, effectively enhancing anti-interference capability.
• Flexible Configuration: Module parameters can be flexibly configured through software, including options such as fail-safe actions (hold/retreat), analog output fail-safe retreat data, etc., to adapt to different application scenarios and needs.
• Status Indication: The front of the module is equipped with Light-Emitting Diodes (LEDs), which can intuitively display the operating status of the module and the communication activity of the channels, facilitating user monitoring and maintenance.
• Structural Design: Adopting a compact and robust design, the shell is made of Acrylonitrile-Butadiene-Styrene (ABS) material, which can adapt to harsh industrial environments such as G3 level. It is installed on the Compact 200 series backplane, which can be installed horizontally or on a rack. When removing or replacing the module, there is no need to remove the field device terminal cables, power supply, or communication cables, making maintenance convenient.

• Communication Protocol: HART.
• Operating Temperature: Generally -20°C to 60°C.
• Power Supply: Usually, a suitable DC power supply is provided by the system to supply isolated power for each channel.
• Fieldbus Communication: It communicates with the control processor, etc., through a redundant 2Mbps module fieldbus interface, and can accept communication from any path (A or B) of the redundant 2Mbps fieldbus.

• Oil and Gas Industry: In the process of oil and gas extraction, transportation, and processing, a large number of on-site equipment need to be precisely controlled and monitored in real-time. The FBM218 module can transmit the instructions of the control system to the flow control valves, pressure control valves and other equipment at the wellhead through the HART protocol, realizing precise regulation of wellhead flow and pressure. At the same time, it can receive the status information fed back by these equipment, and can also communicate with on-site instruments such as level gauges to transmit data to the control system, allowing operators to grasp the operation of the equipment in real-time, ensuring the stability of the entire production process, and improving production efficiency and safety.
• Chemical Processing Industry: The chemical production process is complex, with extremely high requirements for the control of process parameters, and the environment is often corrosive. The FBM218 module can be used to control the feed valve, discharge valve, and temperature regulating device of the reaction kettle. According to process requirements, it can precisely control the valve opening and the amplitude of temperature regulation through HART communication, ensuring the stability of reaction conditions, thereby improving product quality and output. In addition, it can also communicate with analytical instruments such as pH meters and concentration meters, and timely transmit measurement data to the control system, so that operators can adjust the production process in a timely manner based on the data. At the same time, its high reliability and anti-interference ability can ensure stable operation in harsh chemical environments.

• Power Generation Industry: In power plants, whether it is thermal power generation, hydropower generation or other power generation methods, various equipment need to be precisely controlled and monitored. In the thermal system, the FBM218 can control equipment such as the speed control valve of the steam turbine and the feed water control valve of the boiler, and precisely adjust the valve opening according to the operating status of the unit to ensure the stable operation of the unit. In the water treatment system, it can control the flow of the dosing pump, and adjust the dosage in real-time through the HART protocol according to the water quality test results to ensure that the water quality meets the requirements. At the same time, it can also communicate with various on-site sensors to monitor parameters such as temperature, pressure, and vibration of the generator, providing a basis for equipment maintenance and fault diagnosis, and ensuring the reliable power supply of the power system.
• Other Process Control Fields: In addition to the above industries, the FBM218 module can also be applied to other industrial sectors that use HART communication for process control and monitoring. For example, in the food and beverage processing industry, it can be used to control parameters such as flow and pressure of filling equipment to ensure the filling accuracy and quality of products; in the pharmaceutical industry, it can control and monitor equipment such as reaction kettles and centrifuges to ensure the stability and consistency of the drug production process and meet the strict quality requirements of drug production.